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x/0.4-2.3=7.2
We move all terms to the left:
x/0.4-2.3-(7.2)=0
We add all the numbers together, and all the variables
x/0.4-9.5=0
We multiply all the terms by the denominator
x-(9.5)*0.4=0
We add all the numbers together, and all the variables
x-3.8=0
We move all terms containing x to the left, all other terms to the right
x=3.8
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